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  • How do I close a database connection in a WCF service?

    - by Dan
    I have been unable to find any documentation on properly closing database connections in WCF service operations. I have a service that returns a streamed response through the following method. public virtual Message GetData() { string sqlString = BuildSqlString(); SqlConnection conn = Utils.GetConnection(); SqlCommand cmd = new SqlCommand(sqlString, conn); XmlReader xr = cmd.ExecuteXmlReader(); Message msg = Message.CreateMessage( OperationContext.Current.IncomingMessageVersion, GetResponseAction(), xr); return msg; } I cannot close the connection within the method or the streaming of the response message will be terminated. Since control returns to the WCF system after the completion of that method, I don't know how I can close that connection afterwards. Any suggestions or pointers to additional documentation would be appreciated. Dan

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  • Creating a process in a non-zero session from a service in windows-2008-server?

    - by Itay Levin
    Hi, I was wondering if there is a simple way for a service to create a process in user session? My service is running as a user(administrator) account and not as a LocalSystem acount, therefore i can't use the WTSQueryUserToken function. i have tried calling OpenProcessToken(GetCurrentProcess,TOKEN_ALL_ACCESS,TokenHandle); but when i use this token to run CreateProcessAsUser(TokenHandle,.....) my process is still running in session 0. how can i resolve this issue? I'm using an Ole automation so i don't really care on which session the process will be running on, as long it is not the session 0 - because the Ole from some reason doesn't create its processes (winword.exe for instance) in session 0, but rather it creates them in other user sessions. Any suggestions will be welcome. Thanks in advance.

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  • How can I limit access to a particular class to one caller at a time in a web service?

    - by MusiGenesis
    I have a web service method in which I create a particular type of object, use it for a few seconds, and then dispose it. Because of problems arising from multiple threads creating and using instances of this class at the same time, I need to restrict the method so that only one caller at a time ever has one of these objects. To do this, I am creating a private static object: private static object _lock = new object(); ... and then inside the web service method I do this around the critical code: lock (_lock) { using (DangerousObject do = new DangerousObject()) { do.MakeABigMess(); do.CleanItUp(); } } I'm not sure this is working, though. Do I have this right? Will this code ensure that only one instance of DangerousObject is instantiated and in use at a time?

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  • How do I close a database connection being used to produce a streaming result in a WCF service?

    - by Dan
    I have been unable to find any documentation on properly closing database connections in WCF service operations. I have a service that returns a streamed response through the following method. public virtual Message GetData() { string sqlString = BuildSqlString(); SqlConnection conn = Utils.GetConnection(); SqlCommand cmd = new SqlCommand(sqlString, conn); XmlReader xr = cmd.ExecuteXmlReader(); Message msg = Message.CreateMessage( OperationContext.Current.IncomingMessageVersion, GetResponseAction(), xr); return msg; } I cannot close the connection within the method or the streaming of the response message will be terminated. Since control returns to the WCF system after the completion of that method, I don't know how I can close that connection afterwards. Any suggestions or pointers to additional documentation would be appreciated.

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  • how to get an SDP record for bluetooth service??

    - by user302798
    Hi I'm new to both winsock and bluetooth programming. I need to develop a bluetooth service to run on a pc. Looking at the MSDN library they say to use WSASetService(http://msdn.microsoft.com/en-us/library/aa362921%28VS.85%29.aspx) function to publish a service. The problem is that the WSAQUERYSET(http://msdn.microsoft.com/en-us/library/aa362920%28VS.85%29.aspx) structure, that has to be passed to WSASetService, needs a binary SDP record and i don't know how to get it. In the Windows embedded section of the MSDN library they describe a procedure to obtain an SDP record using Bthnscreate. I installed Windows CE 6 to use this tool but i can't find it in the install directory nor in the entire system. How can i get an SDP record? Thanks!

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  • How can I limit access to a particular class to one caller at a time in an ASMX web service?

    - by MusiGenesis
    I have a web service method in which I create a particular type of object, use it for a few seconds, and then dispose it. Because of problems arising from multiple threads creating and using instances of this class at the same time, I need to restrict the method so that only one caller at a time ever has one of these objects. To do this, I am creating a private static object: private static object _lock = new object(); ... and then inside the web service method I do this around the critical code: lock (_lock) { using (DangerousObject do = new DangerousObject()) { do.MakeABigMess(); do.CleanItUp(); } } I'm not sure this is working, though. Do I have this right? Will this code ensure that only one instance of DangerousObject is instantiated and in use at a time? Or does each caller get their own copy of _lock, rendering my code here laughable?

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  • ASP.NET Web Service - Passing a base object with list/collection?

    - by schooner
    We need to create a simple web service in ASP.NET that can be called from PHP or other languages. This in turn will be used to update records in a database for an item submission. The core part is fairly simple, we have a base set of fields for the object - first name, last name, birth date, city, etc. In addition however we need to accept a list of items associated with that object that can range from 0-n. Jan 1 2009, ABC May 1 2010, 123 Jun 30 2010, XXXXX What would be the best way to structure this so it can be easily passed to the ASP.NET web service and processed as a single call for the entire object? Would passing the list of items as a single delimted string be a wise approach? Ex: Jan 1 2009, ABC|May 1 2010, 123|Jun 30 2010, XXXXX

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  • How do I wait for a service/process to start before continuing a batch script?

    - by Shane McD
    I am writing a windows batch script to uninstall some software. However I need to wait after the uninstaller has finished for a service to be restarted before continuing with the next uninstall. I can make the script wait for the uninstaller to finsh using:- for /f "usebackq" %%M in ('tasklist /nh /fi "imagename eq %process_1%"') do if not %%M==%ignore_result% goto 1 But I cannot for the life of me figure out how to get the script to then wait for a service to start before continuing the script and running more uninstalls. I am open to any suggestions.

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  • how to manually deploy a web service on tomcat 6?

    - by opensas
    I'm learning how to develop soap web services with java. So far now I've been following this excelente tutorial http://java.sun.com/developer/technicalArticles/J2SE/jax_ws_2/ it all goes well, I have my web service working from the command line with it's embeded server, and then, with the help of netbeans I deployed it on tomcat. I'd like to know the steps to manually deploy it on tomcat, in order to learn how it's done, and because I don't like depending on an ide. I mean, I'd like to know how everything could be done from the command line and a text editor. I've also found this link that explains how to manually deploy a servlet to tomcat, http://linux-sxs.org/internet_serving/c292.html but I couldn't find any article telling how to deploy a web service... thanks a lot saludos sas

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  • What exactly happens when I call a web service method using PHP::SOAP?

    - by Bedwyr Humphreys
    Say I have a simple client/server scenario with one method: // client code $client = new SoapCLient("service.wsdl"); $result = $client.getPi(); ... // server code function getPi(){ return 3.141; } $server = new SoapServer("service.wsdl"); $server.addFunction("getPi"); $server.handle(); Am I right in thinking that when the client makes a call to the getPi() method the addfunction() gets called everytime? Is this really how PHP SOAP web services work? Or is there some caching going on? Thanks.

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  • How would I access the Windows Login (Authentication) API from a C++ Service Application?

    - by Gabriel
    Let us imagine for a moment that I have a piece of hardware that can act as an authentication for a user on a given system. I want to write an application in C++ to run as a service, look for this device and if found log the appropriate user in. I believe I have found the API's I would need to use to perform the hardware and service portions of the application but am having a hard time nailing down a way to create a "real" user login. Is this possible? If so where would I look to find resources on accomplishing this? I think of it as being an analog to fingerprint scanner login type devices.

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  • Sending the files (At least 11 files) from folder through web service to android app.

    - by Shashank_Itmaster
    Hello All, I stuck in middle of this situation,Please help me out. My question is that I want to send files (Total 11 PDF Files) to android app using web service. I tried it with below code.Main Class from which web service is created public class MultipleFilesImpl implements MultipleFiles { public FileData[] sendPDFs() { FileData fileData = null; // List<FileData> filesDetails = new ArrayList<FileData>(); File fileFolder = new File( "C:/eclipse/workspace/AIPWebService/src/pdfs/"); // File fileTwo = new File( // "C:/eclipse/workspace/AIPWebService/src/simple.pdf"); File sendFiles[] = fileFolder.listFiles(); // sendFiles[0] = fileOne; // sendFiles[1] = fileTwo; DataHandler handler = null; char[] readLine = null; byte[] data = null; int offset = 0; int numRead = 0; InputStream stream = null; FileOutputStream outputStream = null; FileData[] filesData = null; try { System.out.println("Web Service Called Successfully"); for (int i = 0; i < sendFiles.length; i++) { handler = new DataHandler(new FileDataSource(sendFiles[i])); fileData = new FileData(); data = new byte[(int) sendFiles[i].length()]; stream = handler.getInputStream(); while (offset < data.length && (numRead = stream.read(data, offset, data.length - offset)) >= 0) { offset += numRead; } readLine = Base64Coder.encode(data); offset = 0; numRead = 0; System.out.println("'Reading File............................"); System.out.println("\n"); System.out.println(readLine); System.out.println("Data Reading Successful"); fileData.setFileName(sendFiles[i].getName()); fileData.setFileData(String.valueOf(readLine)); readLine = null; System.out.println("Data from bean " + fileData.getFileData()); outputStream = new FileOutputStream("D:/" + sendFiles[i].getName()); outputStream.write(Base64Coder.decode(fileData.getFileData())); outputStream.flush(); outputStream.close(); stream.close(); // FileData fileDetails = new FileData(); // fileDetails = fileData; // filesDetails.add(fileData); filesData = new FileData[(int) sendFiles[i].length()]; } // return fileData; } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } return filesData; } } Also The Interface MultipleFiles:- public interface MultipleFiles extends Remote { public FileData[] sendPDFs() throws FileNotFoundException, IOException, Exception; } Here I am sending an array of bean "File Data",having properties viz. FileData & FileName. FileData- contains file data in encoded. FileName- encoded file name. The Bean:- (FileData) public class FileData { private String fileName; private String fileData; public String getFileName() { return fileName; } public void setFileName(String fileName) { this.fileName = fileName; } public String getFileData() { return fileData; } public void setFileData(String string) { this.fileData = string; } } The android DDMS gives out of memory exception when tried below code & when i tried to send two files then only first file is created. public class PDFActivity extends Activity { private final String METHOD_NAME = "sendPDFs"; private final String NAMESPACE = "http://webservice.uks.com/"; private final String SOAP_ACTION = NAMESPACE + METHOD_NAME; private final String URL = "http://192.168.1.123:8080/AIPWebService/services/MultipleFilesImpl"; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); TextView textViewOne = (TextView) findViewById(R.id.textViewOne); try { SoapObject soapObject = new SoapObject(NAMESPACE, METHOD_NAME); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope( SoapEnvelope.VER11); envelope.setOutputSoapObject(soapObject); textViewOne.setText("Web Service Started"); AndroidHttpTransport httpTransport = new AndroidHttpTransport(URL); httpTransport.call(SOAP_ACTION, envelope); // SoapObject result = (SoapObject) envelope.getResponse(); Object result = envelope.getResponse(); Log.i("Result", result.toString()); // String fileName = result.getProperty("fileName").toString(); // String fileData = result.getProperty("fileData").toString(); // Log.i("File Name", fileName); // Log.i("File Data", fileData); // File pdfFile = new File(fileName); // FileOutputStream outputStream = // openFileOutput(pdfFile.toString(), // MODE_PRIVATE); // outputStream.write(Base64Coder.decode(fileData)); Log.i("File", "File Created"); // textViewTwo.setText(result); // Object result = envelope.getResponse(); // FileOutputStream outputStream = openFileOutput(name, mode) } catch (Exception e) { e.printStackTrace(); } } } Please help with some explanation or changes in my code. Thanks in Advance.

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  • Plymouth fails to start on boot

    - by thomasfedb
    On boot I get this error: [FAILED] Failed to start Wait for Plymouth Boot Screen to Quit. When I check what systemctl status plymouth-quit-wait.service says I get: [root@zanak thomasfedb]# systemctl status plymouth-quit-wait.service plymouth-quit-wait.service - Wait for Plymouth Boot Screen to Quit Loaded: loaded (/usr/lib/systemd/system/plymouth-quit-wait.service; static) Active: failed (Result: timeout) since Sat, 01 Dec 2012 19:19:48 +0800 Main PID: 866 CGroup: name=systemd:/system/plymouth-quit-wait.service This is on a Fedora 17 system, with nVidia closed source drivers installed via rpmfusion.

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  • Upgrading Visual Studio web service project says to "convert to web application."

    - by Buggieboy
    I have a Visual Studio 2003 web service project that I have to upgrade to Visual Studio 2008. After I have run the conversion wizard, I get this message: You have completed the first step in converting your Visual Studio .NET 2003 web project. To complete the conversion, please select your project in the Solution Explorer and choose the 'Convert to Web Application' context menu item. I got this message with another project, which was originally a "web site", rather than an ASP.NET "web application". It made sense to in that case (sort of). Why, however, would I not just want to have this project remain a web service project? Additionally, when I follow the instructions and select "Convert to Web Application" from the context menu, I don't get any feedback that anything has changed. Should it have? If so, what?

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  • What would be the wisest choice for a new .Net RESTful web service?

    - by Phil.Wheeler
    I want to write my first REST web service using the .Net framework. I've seen fairly passionate comments from various people about which is best and have even found some differing comments from Microsoft. My web service should be fairly simple: I want to expose bus timetable information. I figure the resources I will be concerned about are Fares Timetables (routes, stops) What would be the most appropriate (i.e. not necessarily the easiest, most fun or your personal preference) technology to use out of WCF, ADO.NET Data Services or ASP.Net MVC?

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  • How to create a RESTful web service in asp.net?

    - by jonhobbs
    Hi Guys, I simply want to create a fairly basic REST service, so that I can expose some of the data in my asp.net/SQL server application to the outside works, like this..... http://domain.com/api/offices - would return an xml set of office locations. http://domain.com/api/offices/15 - would return all the details of office 15. It's all fairly standard stuff (including basic authentication) but there seem to be several ways to achieve this using Microsoft technologies and I don't really know where to start. These seem to be the options... 1) WCF 2) ASP.NET MVC 3) ADO.NET Data Services 4) Rest Starter Kit project templates? Which of these is the easiest and most "up-to-date" solution to creating a web service?

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  • Java JAX-WS web-service client: how log request & response xml ?

    - by EugeneP
    I created an implementation of LoggingHandler that implements SOAPHandler It should log whenever handleMessage triggers. [ And it is never called in my case ] then : MyService service = new MyService(); MyServicePort port = service.getPortType(); now I try this: BindingProvider bindingProvider = (BindingProvider)port; bindingProvider.getBinding().getHandlerChain().add(new LoggingHandler()); I do not see any request / response xml though. Can you suggest any solution? Maybe there's other way to see output and request xml s ?

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  • How to access Grails domain classes in Java service layer?

    - by batmannavneet
    How can I use grails domain classes (which is in groovy) in service layer which is in Java/Spring. When using the grails MVC, everything is fine as I can use controller to access domain objects and call CRUD and other dynamic methods on them. But, what I am wondering is is there a clean way to do it from Java - say the service layer. For example, I may want to develop a reporting framework where I need to use domain objects to access the DB. I Hope the question is clear. This should be a standard problem that everybody must have faced in a reasonably sized project. I am just wondering how it is solved..maybe I am missing something here. thanks.

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  • Does Google provide any Android tutorials that teach how to implement a Service?

    - by Bub
    I apologize in advance for the "newbie" nature of this question. Here is my predicament: I'm brand new to android and developing in general. I'm using android's SDK with eclipse Galileo. I've followed several tutorials to create different layouts. I've even learned recently how to use radio buttons and verify which ones were selected. Now I need to create a service that downloads and updates an xml file within the application. I've tried to locate a simple tutorial for services on Google's developer site but so far, so bad. If they exist could somebody point me in the right direction? On the other hand, I've been told Google's tutorials are a little out dated. Is that true? If so, are there any other tutorials that would hand-hold (and possibly over-explain) how to use a service to a true newbie for free (like google)? Any suggestions would be appreciated.

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  • Is there a way to configure Fiddler to intercept HTTP calls from a Windows service?

    - by Mike Chess
    We're in the process of replacing an old (5+ years) Windows service application built with VS2005 that makes an HTTP GET call. There are several things that make this difficult (such as the web server is on the customer's network and we can't connect directly to it) and, unfortunately, we'd prefer not to take down the running system to replace it with a WinForm version that can be monitored by Fiddler. The new code appears to be doing everything correctly, but, alas, it is failing to authenticate. Is there a way to configure Fiddler (2.2.9.1) to intercept HTTP calls from a Windows service?

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